ESPN FC's Ian Darke and Taylor Twellman wrap up a tremendous year for the United States and wonder if 2015 will be a letdown.

After teenage forward Rubio Rubin made his United States debut in the recent friendly against Colombia, ESPN FC asked a scout who currently works for a Champions League club in one of Europe's top leagues (England, Spain, Italy or Germany) to assess the potential of the 18-year-old.

Here is his scouting report:

Strengths

"Rubin is technically gifted, smart, and physically capable of holding his own and put in a steady and mature performance against one of the world's best sides in Colombia. He showed...